I am a retired Telecoms Manager. I have been into computing since the 1960s, operating computers with punch cards, programming them and doing systems analysis. I have experience with UNIX (and now Linux), a variety of programming languages and assemblers. For more than 35 years I was responsible for Telecoms services in a large IT company. In retirement I still like to tinker with Arduino, Raspberry Pi, etc. I just enjoy playing with electronics.